Test if email_validate function exists and fix change the indentation from spaces to tabs.

resources/functions.php

@@ -1326,6 +1326,7 @@ function number_pad($number,$n) {
 	}
 
 //email validate
+	if (!function_exists('email_validate')) {
 		function email_validate($strEmail){
 			$validRegExp =  '/^[a-zA-Z0-9\._-]+@[a-zA-Z0-9\._-]+\.[a-zA-Z]{2,3}$/';
 			// search email text for regular exp matches
@@ -1338,5 +1339,6 @@ function number_pad($number,$n) {
 				return 1;
 			}
 		}
+	}
 
 ?>